Modeling of Transient Absorption Spectra in Exciton Charge-Transfer Systems

Abstract

Time-resolved spectroscopy provides the main tool for analyzing the dynamics of excitonic energy transfer in light-harvesting complexes. To infer time-scales and effective coupling parameters from experimental data requires to develop numerical exact theoretical models. The finite duration of the laser-molecule interactions and the reorganization process during the exciton migration affect the location and strength of spectroscopic signals. We show that the non-perturbative hierarchical equations of motion (HEOM) method captures these processes in a model exciton system, including the charge transfer state.

References in corpus (3)

• High-performance solution of hierarchical equations of motions for studying energy-transfer in light-harvesting complexes
• Modelling of Oscillations in Two-Dimensional Echo-Spectra of the Fenna-Matthews-Olson Complex
• Exact Stochastic Unraveling of an Optical Coherence Dynamics by Cumulant Expansion

Cited by in corpus (5)

• Efficient calculation of open quantum system dynamics and time-resolved spectroscopy with Distributed Memory HEOM (DM-HEOM)
• A partially linearized spin-mapping approach for simulating nonlinear optical spectra
• An exciton-coupled electron transfer process controlled by non-Markovian environments
• On the Role of Non-Diagonal System-Environment Interactions in Bridge-Mediated Electron Transfer
• Measuring Exciton Fine-Structure in Perovskite Nanocrystal Ensembles